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Title:
MATERIAL COLLECTION EQUIPMENT
Document Type and Number:
WIPO Patent Application WO/2019/174762
Kind Code:
A1
Abstract:
A material collection equipment (100) includes a handle (102) and a storage compartment (108) adapted to store material therein. The material collection equipment (100) includes an implement compartment (110) having a first side wall (202) and a second side wall (204). The implement compartment (110) also includes an axle (206) and an implement (208) coupled to the axle (206). The implement (208) is adapted to collect the material from a ground surface and transfer the material into the storage compartment (108). The implement compartment (110) further includes a pair of wheels (112) adapted to movably support the implement compartment (110) on the ground surface. The implement (208) includes at least one pair of blades (304) coupled to the axle (206). The at least one pair of blades (304) includes a first blade (312) and a second blade (314) disposed in a side-by-side relation with respect to the first blade (312). The second blade (314) is disposed adjacent to the first blade (312) and at an angular offset with respect to the first blade (312).

Inventors:
KOHL PETER (DE)
DEMMELMAIER TOBIAS (DE)
Application Number:
PCT/EP2018/075695
Publication Date:
September 19, 2019
Filing Date:
September 21, 2018
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
HUSQVARNA AB (SE)
International Classes:
E01H1/04
Foreign References:
US20060070194A12006-04-06
US2834034A1958-05-13
US1399634A1921-12-06
US0604812A1898-05-31
Other References:
None
Attorney, Agent or Firm:
FINKELE, Rolf (DE)
Download PDF:
Claims:
CLAIMS

1. A material collection equipment (100) comprising:

a handle (102);

a storage compartment (108) coupled to the handle (102) and adapted to store material therein; and

an implement compartment (110) disposed adjacent to the storage compartment (108), the implement compartment (110) including:

a first side wall (202);

a second side wall (204) disposed opposite with respect to the first side wall (202);

an axle (206) rotatably coupled to each of the first side wall (202) and the second side wall (204);

an implement (208) coupled to the axle (206), the implement (208) adapted to collect the material from a ground surface and transfer the material into the storage compartment (108); and

a pair of wheels (112) coupled to the axle (206), each of the pair of wheels (112) adapted to movably support the implement compartment (110) on the ground surface,

characterized in that:

the implement (208) includes at least one pair of blades (304) coupled to the axle (206), the at least one pair of blades (304) includes:

a first blade (312) extending in a direction away from the axle (206); and

a second blade (314) extending in a direction away from the axle (206) and disposed in a side-by-side relation with respect to the first blade (312), wherein the second blade (314) is disposed adjacent to the first blade (312) and at an angular offset with respect to the first blade (312).

2. The material collection equipment (100) of claim 1, wherein each of the first blade (312) and the second blade (314) includes a substantially double helical configuration.

3. The material collection equipment (100) of claim 1, wherein each of the first blade (312) and the second blade (314) includes a substantially flat and planar configuration.

4. The material collection equipment (100) of claim 1, wherein each of the first blade (312) and the second blade (314) includes a substantially curved configuration.

5. The material collection equipment (100) of claim 1, wherein each of the first blade (312) and the second blade (314) includes a substantially angled configuration.

6. The material collection equipment (100) of claim 1, wherein the implement (208) further includes a coupling member (302) coupled to the axle (206) and extending radially away from the axle (206), the coupling member (302) adapted to be coupled to the at least one pair of blades (304).

7. The material collection equipment (100) of claim 6, wherein the coupling member (302) in association with the at least one pair of blades (304) forms a substantially Y-Shaped configuration.

8. The material collection equipment (100) of claim 1, wherein each of the first blade (312) and the second blade (314) includes a first portion (502) and a second portion (504) coupled to the first portion (502).

9. The material collection equipment (100) of claim 8, wherein the second portion (504) includes a bristled configuration.

10. The material collection equipment (100) of claim 1, wherein the first blade (312) and the second blade (314) are laterally offset to each other.

Description:
MATERIAL COLLECTION EQUIPMENT

TECHNICAL FIELD

The present disclosure relates to a material collection equipment, and more particularly to a structural aspect of the material collection equipment.

BACKGROUND

Generally, a material collection equipment, such as a walk-behind leaves collector, may include a rotating brush provided within an enclosure. As the equipment may move over a ground surface, the rotating brush may rotate and contact the ground surface. When the rotating brush may contact and move over leaves present on the ground surface, the rotating brush may collect the leaves and transfer the collected leaves to an adjacent compartment.

However, in many situations, the rotating brush may include straight profiled bristles. Such bristles provide a substantial resistance while moving over the ground surface, in turn, making the collection process labor and time intensive. Also, due to the straight profiled bristles, an overall area present within the enclosure and/or around the rotating brush may be inefficiently utilized, in turn, reducing productivity and material collectability of the equipment. Hence, there is a need for an improved profile of such rotating brushes employed in the equipment.

SUMMARY

In view of the above, it is an objective of the present invention to solve or at least reduce the drawbacks discussed above. The objective is at least partially achieved by a material collection equipment, according to an embodiment of the present invention. The material collection equipment includes a handle. The material collection equipment includes a storage compartment coupled to the handle and adapted to store material therein. The material collection equipment includes an implement compartment disposed adjacent to the storage compartment. The implement compartment includes a first side wall and a second side wall disposed opposite with respect to the first side wall. The implement compartment includes an axle rotatably coupled to each of the first side wall and the second side wall. The implement compartment also includes an implement coupled to the axle. The implement is adapted to collect the material from a ground surface and transfer the material into the storage compartment. The implement compartment further includes a pair of wheels coupled to the axle. Each of the pair of wheels is adapted to movably support the implement compartment on the ground surface. The implement includes at least one pair of blades coupled to the axle. The at least one pair of blades includes a first blade extending in a direction away from the axle. The at least one pair of blades also includes a second blade extending in a direction away from the axle and disposed in a side-by-side relation with respect to the first blade. The second blade is disposed adjacent to the first blade and at an angular offset with respect to the first blade. As such, the side-by-side relation and the angular offset provides a relatively larger surface area in order to collect the material from the ground surface, in turn, providing improved productivity. Also, the side-by-side relation and the angular offset provides a relatively lower resistance while moving over the ground surface during collection of the material from the ground surface, in turn, providing improved efficiency.

According to an embodiment of the present invention, each of the first blade and the second blade includes a substantially double helical configuration. As such, the double helical configuration provides a relatively larger surface area in order to collect the material from the ground surface, in turn, providing improved productivity. Also, the double helical configuration provides a relatively lower resistance while moving over the ground surface during collection of the material from the ground surface, in turn, providing improved efficiency.

According to an embodiment of the present invention, each of the first blade and the second blade includes a substantially flat and planar configuration. As such, the flat and planar configuration provides a relatively larger surface area in order to collect the material from the ground surface, in turn, providing improved productivity. Also, the flat and planar configuration provides a relatively lower resistance while moving over the ground surface during collection of the material from the ground surface, in turn, providing improved efficiency. According to an embodiment of the present invention, each of the first blade and the second blade includes a substantially curved configuration. As such, curved configuration provides a relatively larger surface area in order to collect the material from the ground surface, in turn, providing improved productivity. Also, the curved configuration provides a relatively lower resistance while moving over the ground surface during collection of the material from the ground surface, in turn, providing improved efficiency.

According to an embodiment of the present invention, each of the first blade and the second blade includes a substantially angled configuration. As such, the angled configuration provides a relatively larger surface area in order to collect the material from the ground surface, in turn, providing improved productivity. Also, the angled configuration provides a relatively lower resistance while moving over the ground surface during collection of the material from the ground surface, in turn, providing improved efficiency.

According to an embodiment of the present invention, the implement further includes a coupling member coupled to the axle and extending radially away from the axle. As such, the coupling member is adapted to be coupled to the at least one pair of blades. The coupling member provides a simple and effective method to couple the at least one pair of blades with respect to the axle, in turn, providing improved usability, simplified installation, reduced labor, and the like.

According to an embodiment of the present invention, the coupling member in association with the at least one pair of blades forms a substantially Y-Shaped configuration. As such, the Y-shaped configuration provides a relatively more aggressive sweeping force by a leading blade of the at least one pair of blades in order to lift the material from the ground surface. Additionally, the Y-shaped configuration provides a drifting or pushing force to the lifted material by a trailing blade of the at least one pair of blades in order to transfer the material into the storage compartment.

According to an embodiment of the present invention, each of the first blade and the second blade includes a first portion and a second portion coupled to the first portion. As such, each of the first portion and the second portion provides a variable structural, constructional, and/or operational configuration to each of the first blade and the second blade.

According to an embodiment of the present invention, the second portion includes a bristled configuration. As such, the bristle configuration provides a flexible end surface to each of the first blade and the second blade in order to provide improved sweeping action, improved material collectability, improved productivity, reduced damage to the ground surface, and the like.

Other features and aspects of this invention will be apparent from the following description and the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention will be described in more detail with reference to the enclosed drawings, wherein:

FIG. 1 shows a perspective view of a material collection equipment, in accordance with an embodiment of the present invention;

FIG. 2 shows an enlarged perspective view of a portion of the material collection equipment, in accordance with an embodiment of the present invention;

FIG. 3 shows a perspective view of an implement of the material collection equipment, in accordance with an embodiment of the present invention;

FIG. 4 shows a side view of another implement of the material collection equipment, in accordance with another embodiment of the present invention;

FIG. 5 shows a perspective view of another implement of the material collection equipment, in accordance with another embodiment of the present invention;

FIG. 6 shows a perspective view of another implement of the material collection equipment, in accordance with another embodiment of the present invention; and FIG. 7 shows a perspective view of another implement of the material collection equipment, in accordance with another embodiment of the present invention.

DESCRIPTION OF EMBODIMENTS

The present invention will be described more fully hereinafter with reference to the accompanying drawings, in which example embodiments of the invention incorporating one or more aspects of the present invention are shown. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. For example, one or more aspects of the present invention can be utilized in other embodiments and even other types of structures and/or methods. In the drawings, like numbers refer to like elements.

Certain terminology is used herein for convenience only and is not to be taken as a limitation on the invention. For example,“upper”,“lower”,“front”, “rear”,“side”,“longitudinal”,“lateral”,“tr ansverse”,“upwards”,“downwards”, “forward”, “backward”, “sideward”, “left,” “right,” “horizontal,” “vertical,” “upward”, “inner”, “outer”, “inward”, “outward”, “top”, “bottom”, “higher”, “above”, “below”, “central”, “middle”, “intermediate”, “between”, “end”, “adjacent”, “parallel”, “inclined”, “proximate”, “near”, “distal”, “remote”, “radial”,“circumferential”, or the like, merely describe the configuration shown in the Figures. Indeed, the components may be oriented in any direction and the terminology, therefore, should be understood as encompassing such variations unless specified otherwise.

Referring to FIG. 1, a perspective view of a material collection equipment 100 is illustrated. The material collection equipment 100 will be hereinafter interchangeably referred to as the“equipment 100”. The equipment 100 is adapted to collect material (not shown) present on a ground surface and store the material therein. In one embodiment, the equipment 100 may be a walk-behind leaves collector adapted to collect leaves present on a lawn surface and store the leaves therein. In another embodiment, the equipment 100 may be a floor cleaner adapted to collect debris present on a floor surface and store the debris therein, and the like.

The equipment 100 includes a handle 102. The handle 102 is adapted to provide a pushing force therethrough to the equipment 100 in order to propel the equipment 100 on the ground surface during a work operation. The handle 102 may be any handle known in the art, such as a fixed handle, a swivel handle, a pivot handle, a telescopic handle, and the like. The handle 102 also includes a gripping portion 104 coupled thereto. The gripping portion 104 is adapted to hold the handle 102 during the work operation. The handle 102 further includes a support portion 106 coupled thereto. The support portion 106 is adapted to support and/or couple the handle 102 with respect to the equipment 100.

The equipment 100 includes a storage compartment 108. In the illustrated embodiment, the support portion 106 is coupled to the storage compartment 108. The storage compartment 108 includes a substantially hollow configuration. The storage compartment 108 is adapted to receive the material therein during the work operation. Additionally, the storage compartment 108 is adapted to temporally store the material therein, based on application requirements. In some embodiments, the storage compartment 108 may include a cover portion (not shown) provided thereon. The cover portion may be adapted to provide an enclosure on the storage compartment 108.

The equipment 100 includes an implement compartment 110. The implement compartment 110 is disposed adjacent to and in association with the storage compartment 108. The implement compartment 110 will be explained in more detail later. The equipment 100 also includes a pair of wheels 112. Each of the pair of wheels 112 is movably coupled to the implement compartment 110. Each of the pair of wheels 112 is adapted to support and propel the equipment 100 on the ground surface. Accordingly, each of the pair of wheels 112 is adapted to rotate about an axis X-X’, based on movement of the equipment 100 on the ground surface. Referring to FIG. 2, a perspective view of the implement compartment 110 is illustrated. The implement compartment 110 includes a substantially hollow configuration. The implement compartment 110 includes a first side wall 202 and a second side wall 204. The second side wall 204 is disposed opposite the first side wall 202. The implement compartment 110 also includes an axle 206 disposed therein. The axle 206 is rotatably coupled to each of the first side wall 202 and the second side wall 204. Further, the axle 206 is coupled to each of the pair of wheels 112. Accordingly, based on a rotation of each of the pair of wheels 112, the axle 206 is adapted to rotate about an axis Y-Y’.

In the illustrated embodiment, the axis Y-Y’ is disposed at an offset with respect to the axis X-X’. Accordingly, the axle 206 is coupled to one or more of the pair of wheels 112 via a transmission mechanism (not shown). The transmission mechanism may be any power transfer mechanism, such as one or more gears, a belt pulley mechanism, contacting elements, and the like. In some embodiments, the axle 206 may be directly coupled to each of the pair of wheels 112. In such a situation, the axis X-X’ may axially align and coincide with respect to the axis Y-Y’.

The equipment 100 further includes an implement 208 disposed within the implement compartment 110. In the illustrated embodiment, the equipment 100 includes two implements 208 disposed within the implement compartment 110. The implement 208 is fixedly coupled to the axle 206. Accordingly, the implement 208 is adapted to rotate about the axis Y-Y’, based on the rotation of the axle 206. The implement 208 is adapted to collect the material from the ground surface and transfer the material into the storage compartment 108. The implement 208 will be explained in more detail with reference to FIG. 3.

Referring to FIG. 3, a perspective view of the implement 208 is illustrated. In the illustrated embodiment, each of the two implements 208 is disposed at an angular offset with respect to one another on the axle 206 defining an angle“Al”. In other embodiments, each of the two implements 208 may be angularly aligned with respect to one another on the axle 206. Further, in other embodiments, the equipment 100 may include single or multiple implements 208, based on application requirements. The implement 208 includes a coupling member 302. The coupling member 302 is adapted to be coupled to the axle 206 and extends radially away therefrom. The coupling member 302 may be coupled to the axle 206 using any coupling mechanism known in the art. In one embodiment, the coupling member 302 may be coupled to the axle 206 using interlocking surfaces or tabs provided on each of the coupling member 302 and the axle 206. In another embodiment, the coupling member 302 may be coupled to the axle 206 using one or more fasteners, such as one or more bolts, screws, clamps, clasps, pins, and the like.

The implement 208 also includes one or more pair of blades 304 coupled to the coupling member 302. In the illustrated embodiment, the implement 208 includes two pair of blades 304 coupled to the coupling member 302. Each of the two pair of blades 304 is disposed at an angular offset with respect to one another defining an angle“A2”. In other embodiments, the implement 208 may include single or multiple pair of blades 304, based on application requirements. Each of the pair of blades 304 is coupled to the coupling member 302 via a stem portion 306 provided thereon and a protrusion 308 provided on the coupling member 302. More specifically, the protrusion 308 is received within a recess 310 provided in the stem portion 306 of the pair of blades 304 in order to couple each of the pair of blades 304 with the respective coupling member 302. In other embodiments, one or more of the pair of blades 304 may be coupled to coupling member 302 using one or more fasteners, such as bolts, screws, clamps, clasps, pins, and the like, and/or any other coupling mechanism known in the art.

Each of the pair of blades 304 includes a first blade 312 and a second blade 314. Each of the first blade 312 and the second blade 314 extends in a direction away from the coupling member 302 and the axle 206. Also, in the illustrated embodiment, each of the first blade 312 and the second blade 314 is disposed in a side-by-side relation and adjacent with respect to one another. Further, each of the first blade 312 and the second blade 314 is disposed at an angular offset with respect to one another defining an angle“A3”. Each of the first blade 312 and the second blade 314 includes a substantially perforated configuration. In other embodiments, one or more of the first blade 312 and the second blade 314 may include a substantially non-perforated or partially perforated configuration Also, in the accompanying FIGS. 2 and 3, each of the pair of blades 304 includes a substantially double helical configuration.

With combined reference to FIG. 3, the first blade 312 and the second blade 314 are provided at a lateral offset to each other. Due to the lateral offset, during the sweeping motion of the pair of blades 304, better coverage of the ground surface is provided. Spaces left to be swept between cutting edges of the first blade 312 are swept by cutting edges of the second blade 314 which follows the sweeping motion of the first blade 312.

Referring to FIG. 4, a side view of another configuration of the implement 208 is illustrated. In the illustrated embodiment, each of the first blade 312 and the second blade 314 is disposed at the angle“A3” with respect to one another. Also, each of the first blade 312 and the second blade 314 includes a substantially flat and planar configuration. Further, each of the first blade 312 and the second blade 314 in association with the stem portion 306 and the coupling member 302 forms a substantially Y-shaped configuration. During rotation of the implement 208 in a direction“A”, the first blade 312 may be configured to provide a relatively more aggressive sweeping force in order to lift the material from the ground surface. Additionally, the second blade 314 may be configured to provide a drifting or pushing force to the lifted material present downstream of the first blade 312 in order to transfer the material into the storage compartment 108.

Referring to FIG. 5, a perspective view of another configuration of the implement 208 is illustrated. Each of the first blade 312 and the second blade 314 includes a substantially flat and curved configuration. In the illustrated embodiment, the implement 208 includes the single pair of blades 304. In other embodiments, the implement 208 may include the multiple pair of blades 304, based on application requirements. Further, in some embodiments, each of the first blade 312 and the second blade 314 includes a first portion 502 and a second portion 504. The first portion 502 may include a substantially rigid configuration. The second portion 504 may include a substantially flexible configuration, such as a brush-like configuration, a bristled configuration, and the like. The second portion 504 is coupled to the first portion 502 using any coupling mechanism (not shown), such as adhesion, interlocking elements, and the like.

Referring to FIG. 6, a perspective view of another configuration of the implement 208 is illustrated. Each of the first blade 312 and the second blade 314 includes a substantially curved and double helical configuration. In the illustrated embodiment, the implement 208 includes the single pair of blades 304. In other embodiments, the implement 208 may include the multiple pair of blades 304, based on application requirements. Referring to FIG. 7, a perspective view of another configuration of the implement 208 is illustrated. Each of the first blade 312 and the second blade 314 includes a substantially angled and twisted configuration. In the illustrated embodiment, the implement 208 includes the single pair of blades 304. In other embodiments, the implement 208 may include the multiple pair of blades 304, based on application requirements.

In the drawings and specification, there have been disclosed preferred embodiments and examples of the invention and, although specific terms are employed, they are used in a generic and descriptive sense only and not for the purpose of limitation of the scope of the invention being set forth in the following claims.

LIST OF ELEMENTS

100 Material Collection Equipment / Equipment

102 Handle

104 Gripping Portion

106 Support Portion

108 Storage Compartment

110 Implement Compartment

112 Pair of Wheels

202 First Side Wall

204 Second Side Wall

206 Axle

208 Implement

302 Coupling Member

304 Pair of Blades

306 Stem Portion

308 Protrusion

310 Recess

312 First Blade

314 Second Blade

502 First Portion

504 Second Portion A1 Angle A2 Angle A3 Angle

A Direction

X-X’ Axis Y-Y’ Axis